Great meeting with our Advisory Board last week! We discussed key topics — organization, website, promotion, our living network, and funding. Huge thanks to everyone who joined, and to those who couldn’t attend but shared their feedback via our survey. Your input drives our initiative forward! 🙌

Welcome to our guest researcher, Dr. Saeid Azadifar from @oulu.fi 🇫🇮 He collaborates with us at @kit.edu and held an excellent talk on “Machine Learning of Digital Biomarkers to Predict Mental Health Outcomes.” Looking forward to more inspiring discussions over the next two weeks. #Wearables

#ConferenceTime Congrats to our colleague Til Becker presenting the WL #LivingReview at the International Seminar on Health Behavior at ESLSCA University in Cairo 🇪🇬 as part of the DAAD "BRIDGE" project on Transferability and Sustainability of Health Behavior in in Intercultural Dialogue. 👏🌍

📢 Save the date! 🗓️ Nov 26–28 | DIGISPORT Winter School 2025 in Rennes, France 🇫🇷 Theme: “Quantify, Analyze, Prescribe: The Digital Shift in Physical Activity and Health” Join sessions on #wearables, 24-h movement behavior, VR & health, and digital innovation 👉 digisport-ws2.sciencesconf.org

#MemberMonday Insights from last week’s Wearable Landscape meeting: a big thanks to our core members and supporting students for weekly developing the initiative — and (of course) having some fun along the way :) Let’s keep building our living network! 🌍💡 #Wearables #OpenScience #Collaboration

📊 New review on 24-h movement behavior assessment using #accelerometers! 102 studies across all ages show huge variation in protocols — from wear-time rules and epoch lengths to cut-points and devices. 🗝️ Harmonization is key to make results more comparable across studies and countries. #Wearables

🔊 Sound on 🔊 For all our members — and everyone who’d like to become part of the Wearable Landscape — we’ve created a short clip introducing your visibility options for the website: www.wearable-landscape.info/vision 🧵 Also, have a look at the thread below and stay tuned for future updates!

🚀 Kick-off: #DelphiStudy on Wearable #Validation We are excited to announce the start of our Delphi study on the development of ✅ a standardized reporting checklist for wearable validation studies, and ✅ a quality assessment tool for systematic evaluation. #Wearables #OpenScience #Collaboration

Our colleague Irina Timm (@irinatimm.bsky.social) presented the Wearable Landscape poster at Germany’s biggest sports science conference 🎉 Want to know more about challenges and opportunities of validation studies in wearable research? 👉 www.sciencedirect.com/science/arti... #dvs2025 #dvs

#LivingReview Update ✨ - Full text screening done: n=263 included validation studies. - Data Extraction and Quality Assessment in progress. - Network members involved. With more included studies and extensive DE and QA, we welcome all members with the capacity to support us 🫱🏼‍🫲🏽 #Wearables

📢 Call for Papers Special Issue in the Journal for the Measurement of Physical Behaviour: “From Heterogeneity to Harmonization and/or Standardization: Addressing Variability in Accelerometer-Assessed Physical Activity Methods and Outcomes” 👉 Submission open for researchers working with wearables

#Wearables step-count validation ✅⌚ In a study of 21 wearables on the treadmill, authors found significant effects of walking speed, wear position, and age on accuravy. Many wearables track steps reasonably well, independent from being a commercial or research-grade device. #Validation is key 🗝️

#MemberMonday - Join the Network ✨ After introducing our network, now we invite YOU! If you use wearables of any kind in your research, join our network to... 📈 gain visibility for your work 🌍 connect with peers 📊 share resources & support Let’s shape the Wearable Landscape! #academicsky #network

#MemberMonday Update ✨ Manuel Leitner is a Sports Science grad & Research Assistant @kit.edu 🇩🇪. He focuses on movement & well-being in children and adolescents 🧒⚽ and wants to improve activity assessment. He supports the Wearable Landscape in spreading our vision 🚀 Welcome to our Management Group!

🎯 Testing the accuracy of 21 #algorithms for estimating sedentary time with wrist-worn #wearables revealed only 5 (24%) were within 10% of the gold standard. Two machine learning 🤖 and three posture-based cut-points performed best. Great contribution to identify precise algorithms for wearable data!

#MemberMonday Wrap-Up Over the last 10 weeks, we’ve introduced our amazing Advisory Board – experts in the fields of wearables ⌚️, physical activity 🏃🏽‍♂️‍➡️, health research 💟 and more. A huge thanks to all for supporting our initative and stay tuned for more updates. #academicsky #wearables

🚨New study targeting different wear locations in children with activPAL (thigh) & ActiGraph (wrist) revealed... - differences on average acceleration - strong agreement on intensity metrics Great insights into comparable physical activity analysis across devices and wear locations. #Validation

#MemberMonday Åsa B Tornberg is an Associate Professor @lund-university.bsky.social 🇸🇪 & head of the Physical Activity & Exercise for Health lab. She is experienced in exercise physiology and wearables, and aims to contribute to measure & analyse physical activity smarter & more consistent💡

Why is #validation essential for wearable-use in research? Not all #wearables are created equal. Their validity depends on context such as target behavior, sensor placement, and assessed population. Therefore, validation studies are crucial to improve feedback and ensure measurment accuracy! 🎯

#MemberMonday Pedro Saint-Maurice, Ph.D., leads the Physical Activity and Quality of Life lab at the Champalimaud Foundation. His work explores how wearable data can better quantify physical activity and sleep to improve health for adults with cancer or contribute to prevention 🏃🏽‍♂️🛏️ #CancerResearch

More #SleepResearch 💤 A study in patients with central disorders of hypersomnolence compared actigraphy algorithms versus 24 h polysomnography. The authors found a partly underestimation of nighttime sleep and a clear overestimation of daytime sleep and 24-h sleep. Caution for diagnosis. #Wearables

#MemberMonday Dr. Birte von Haaren-Mack´s research focuses on interrelationships between physical activity and stress. She has years of methodological experience in physical activity and stress monitoring using Ambulatory Assessment methods. #Wearables #AmbulatoryAssessment #academicsky 🧪

New research alert 🚨 A memory-foam in-ear wearable shows strong agreement with gold standard polysomnography recordings in the assessment of sleep quality and even outperforms actigraphy. This enables simplified, accurate and low-cost home-based sleep monitoring. #Wearables #BehavSci #Sleep

#MemberMonday Dr. Caterina Gawrilow is a Full Professor in the Department of Psychology at the @unituebingen.bsky.social. Her interest is grounded in the potential to advance empirical research on the assessment of physical activity within schools to improve interventional research. #academicsky🧪

🚨 Invitation to the WEALTH Final Symposium 🚨 Learn more about the #WEALTHProject – a multi-country research initiative to develop standardised methods for assessing physical and eating behaviours using wearable sensors. 📅 Date: September 30th, 2025 💻 Location: Online 🎟️ Register: via the link below

#MemberMonday Prof. Dr. Alexander Woll leads the Institute for Sports and Sports Science at @kit.edu. His work bridges science, policy & active living across the lifespan with e.g. the MoMo longitudinal study on children’s motor skills & movement running since 2003. #SportsScience #academicsky 👟

At last week's #ECSS2025 conference in Rimini 🇮🇹 our initiative was presented by our members Marco Giurgiu, Markus Reichert, Tomas Vetrovsky and Peter Düking in the Special Interest Group "Wearable Technologies and Ambulatory Assessment in Movement and Exercise" (sport-science.org/index.php/pr...

#MemberMonday Dr. Johannes (Hans) B.J. Bussmann is an Assoc. Prof. in the Department of Rehabilitation Medicine at Erasmus University Rotterdam 🇳🇱. He leads the research line "Physical Behaviour Monitoring in Chronic Conditions" and develops measuring activity in clinical populations. #BehavSci 🧪

Ever wondered about #wearable use in context of disability? 🧑🏻‍🦽‍➡️ A study validated a wrist‑worn consumer wearable for measuring sedentary time & physical activity in manual wheelchair users. The accuracy rivals research-grade devices and is thus promising for an accessible self‑monitoring. #BehavSci🧪

#MemberMonday Prof. Moritz Schumann is head of the Department of Sports Medicine and Exercise Therapy at Chemnitz University of Technology. He is co-chair of the European INTERLIVE®-Network, that aims at developing gold standards for the validation of wearable devices. #Wearables #BehavScience 🧪

Exciting research from our member Manolis Adamakis: Findings on the validity of #WearableTech to measure steps in lab-environments 🔬 opposed to everyday life 🏡 indicate fewer error rates for a set of wearables in lab-based contexts, while apps performed poorly in both settings. #academicsky

#MemberMonday Dr. Myles O’Brien is an Assistant Professor in Medicine at ‪usherbrooke.bsky.social‬ (Canada). His research program studies the impact of movement/postures via thigh worn accelerometry on cardiovascular function and frailty in clinical populations. #Wearables #DigitalHealth 🫀

#MemberMonday Manolis Adamakis is an Assistant Professor at National and Kapodistrian University of Athens, Greece, specializing in research methods in physical education. Interested in wearable technologies for enhancing movement and learning experiences. #BehavSci #Wearables #SportScience 🧪

#MemberMonday Advisory Board Prof. Dr. Claudio R. Nigg is the Health Science Department Chair at the Institute of Sport Science, University of Bern, Switzerland. He specializes in motivation of physical activity and multiple health behavior change in various settings. #SportScience #BehavSci 🧪

#MemberMonday Recap The past seven weeks introduced each member of our Management Group. A huge thank you to Marco Giurgiu, @fiejanis.bsky.social, @irinatimm.bsky.social, Simon Woll, Til Becker, Doreen Wohlfahrt and @clendt.bsky.social for your contribution to Wearable Landscape! #academicsky 🧪

🚀 We are excited to announce the launch of our Discord channel. This platform is a low-barrier opportunity for exchange among our network. We see this channel as a pilot to stimulate interaction and advance collaboration in our community. #OpenScience #Wearables #BehSci #academicsky 🧪

#MemberMonday Claas Lendt ( @clendt.bsky.social ) is a research fellow at the University of Regensburg ( @uniregensburg.bsky.social ). He is most interested in machine learning approaches to quantify free-living physical behaviour using #Wearables. #OpenData #OpenScience 🔬

👉 Homepage #Update We have launched an updated version of our homepage: www.wearable-landscape.info/vision New features include: - a more comprehensive insight into all our network activities 👥 - and the possibility to follow news and recent developments 🗞️ #OpenScience #Wearables #academicsky 🧪

#MemberMonday Doreen Wohlfarth is a research assistant at @kit.edu . She is involved in various projects at the Sports Institute, with her current focus on the Wearable Landscape project. Here she supports our Living Review and other important publications. #SportScience #BehSci #AcademicSky 🧪

Living Review Update: Full text screening is nearly done and we expect around 200 new validation studies to be included. Data extraction is under development to directly fit into our dashbord data as well. New collaborators will join soon and accelerate the process 🫱🏼‍🫲🏽 #BehSci #academicsky 🧪

#MemberMonday Til Becker is a student assistant researcher at the Karlsruhe Institute of Technology ( @kit.edu ) during his master's degree. He sees the Wearable Landscape as great opportunity to improve his own competences and the field of wearables. #SportScience #BehSci #AcademicSky 🧪

🔍 What is Wearable Landscape? An open-science project aiming to foster collaboration in the field of #Wearables. We want to bring experts together, to ultimately advance the validation and application in wearables that track 24-hour physical behavior (sleep, sedentary time, activity) #OpenScience

#MemberMonday Simon Woll, M.Sc., is a PhD student at @kit.edu researching at the intersection of #MachineLearning, 24-hour physical behavior and mental health. He leads the technical development of the Wearable Landscape initiative. #SportScience #BehSci #AcademicSky 🧪

#MemberMonday Irina Timm ( @irinatimm.bsky.social ) is a PhD student at @kit.edu Mental mHealth Lab. She investigates links between #PysicalActivity, sedentary behavior & affective well-being - considering contextual factors like weather and social contact. #SportScience #BehSci #AcademicSky 🧪

Why do people use Fitbits the way they do? A study explored Fitbit usage habits and found that trust in the accuracy of the data, high usage and personality matter. However, actual behavior change based on usage could not be supported. 📎 #SportScience #Wearables #BehSci #PhysicalActivity

Exploring advances in #AccelerometerTechnology for #HumanMovement, a review highlights new data analysis techniques. It maps current validated methods, noting a rise in machine learning beside traditional cut-point methods. This aids researchers to keep track of best practices #Wearables #Validation

New week, new #MemberMonday Dr. Janis Fiedler ( @fiejanis.bsky.social ) is a post-doctoral researcher @kit.edu . His main research interests include #mhealth interventions, and #ExercisePhysiology. He is dedicated to foster an open science culture for the validation of wearables.

How accurate are Fitbit devices in estimating energy expenditure during #PhysicalActivity ? 🧐 Alhough Fitbit is widely used, a meta-analysis of 29 studies found only moderate validity, with heart rate capability, activity type & sedentary behavior influencing the results. #Wearables #Validation

Welcome Marco to our first #MemberMonday introducing our team: Dr. Marco Giurgiu is a postdoc @kit.edu and focuses his research on the relationship between 24-h #PhysicalBehavior and #Health. He initated and leads our initiative with the vision of a global network to address challenges together.

🔍 A new scoping review highlights a wide variety in 24-hour movement behavior assessment with accelerometry, emphasizing a critical need for uniform standards. Discover more here: sportsmedicine-open.springeropen.com/articles/10.... #Accelerometry #Wearables